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DOE OSTI2020

Materials Data on Mg2Tl by Materials Project

Mg2Tl is zeta silver zinc structured and crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded to four Tl atoms to form a mixture of distorted edge and corner-sharing MgTl4 tetrahedra. There are two shorter (2.99 Å) and two longer (3.00 Å) Mg–Tl bond lengths. In the second Mg site, Mg is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.11 Å) and four longer (3.19 Å) Mg–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 9-coordinate geometry to nine Mg atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to nine Mg atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TlHO by Materials Project

TlOH crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of three TlOH sheets oriented in the (0, 0, 1) direction. In one of the TlOH sheets, there are four inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 1-coordinate geometry to one H1+ and four O2- atoms. The Tl–H bond length is 2.48 Å. There are a spread of Tl–O bond distances ranging from 2.61–3.44 Å. In the second Tl1+ site, Tl1+ is bonded in a 2-coordinate geometry to one H1+ and three O2- atoms. The Tl–H bond length is 2.52 Å. There are a spread of Tl–O bond distances ranging from 2.45–3.36 Å. In the third Tl1+ site, Tl1+ is bonded in a 2-coordinate geometry to two O2- atoms. There are one shorter (2.46 Å) and one longer (2.60 Å) Tl–O bond lengths. In the fourth Tl1+ site, Tl1+ is bonded in a distorted single-bond geometry to one O2- atom. The Tl–O bond length is 2.54 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to two Tl1+ and one O2- atom. The H–O bond length is 0.98 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Tl1+ and one H1+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two Tl1+ and one H1+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to three Tl1+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three Tl1+ and one H1+ atom. In two of the TlOH sheets, there are two inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 2-coordinate geometry to two O2- atoms. There are one shorter (2.46 Å) and one longer (2.67 Å) Tl–O bond lengths. In the second Tl1+ site, Tl1+ is bonded in a 4-coordinate geometry to one H1+ and three O2- atoms. The Tl–H bond length is 2.44 Å. There are two shorter (2.68 Å) and one longer (2.70 Å) Tl–O bond lengths. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Tl1+ and one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to two Tl1+ and one H1+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to three Tl1+ and one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbMgTl by Materials Project

MgTbTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to four Tl atoms. There are two shorter (2.93 Å) and two longer (2.99 Å) Mg–Tl bond lengths. Tb is bonded in a 5-coordinate geometry to five Tl atoms. All Tb–Tl bond lengths are 3.26 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a distorted q6 geometry to six equivalent Mg and three equivalent Tb atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Tb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdMgTl by Materials Project

MgNdTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to four Tl atoms. There are two shorter (3.01 Å) and two longer (3.03 Å) Mg–Tl bond lengths. Nd is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.31 Å) and four longer (3.32 Å) Nd–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a distorted q6 geometry to six equivalent Mg and three equivalent Nd atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Nd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PrMgTl by Materials Project

MgPrTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to four Tl atoms. There are two shorter (3.01 Å) and two longer (3.06 Å) Mg–Tl bond lengths. Pr is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.31 Å) and four longer (3.34 Å) Pr–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a distorted q6 geometry to six equivalent Mg and three equivalent Pr atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Pr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LuMgTl by Materials Project

MgLuTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded to four Tl atoms to form a mixture of distorted edge and corner-sharing MgTl4 tetrahedra. There are two shorter (2.87 Å) and two longer (2.95 Å) Mg–Tl bond lengths. Lu is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.19 Å) and four longer (3.21 Å) Lu–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Lu atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Lu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tl2Pd3Se2 by Materials Project

Pd3Tl2Se2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Pd is bonded in a 6-coordinate geometry to four Tl and two equivalent Se atoms. There are two shorter (2.95 Å) and two longer (3.09 Å) Pd–Tl bond lengths. Both Pd–Se bond lengths are 2.48 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded to six equivalent Pd and two equivalent Se atoms to form corner-sharing TlPd6Se2 hexagonal bipyramids. Both Tl–Se bond lengths are 3.34 Å. In the second Tl site, Tl is bonded in a distorted hexagonal planar geometry to six equivalent Pd atoms. Se is bonded in a 4-coordinate geometry to three equivalent Pd and one Tl atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmMgTl by Materials Project

MgTmTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded to four Tl atoms to form a mixture of distorted corner and edge-sharing MgTl4 tetrahedra. There are two shorter (2.88 Å) and two longer (2.96 Å) Mg–Tl bond lengths. Tm is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.20 Å) and four longer (3.22 Å) Tm–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Tm atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoMgTl by Materials Project

MgHoTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded to four Tl atoms to form a mixture of distorted edge and corner-sharing MgTl4 tetrahedra. There are two shorter (2.90 Å) and two longer (2.98 Å) Mg–Tl bond lengths. Ho is bonded in a 5-coordinate geometry to five Tl atoms. There are one shorter (3.22 Å) and four longer (3.24 Å) Ho–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Ho atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Ho atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on DyMgTl by Materials Project

MgDyTl crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to four Tl atoms. There are two shorter (2.93 Å) and two longer (2.97 Å) Mg–Tl bond lengths. Dy is bonded in a 5-coordinate geometry to five Tl atoms. There are four shorter (3.24 Å) and one longer (3.25 Å) Dy–Tl bond lengths. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Dy atoms. In the second Tl site, Tl is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Dy atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tl2Rh3S2 by Materials Project

Rh3Tl2S2 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Rh is bonded to four Tl and two equivalent S atoms to form distorted RhTl4S2 octahedra that share corners with two equivalent TlRh6S2 hexagonal bipyramids, corners with twelve equivalent RhTl4S2 octahedra, and faces with four equivalent RhTl4S2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. There are two shorter (2.88 Å) and two longer (2.90 Å) Rh–Tl bond lengths. Both Rh–S bond lengths are 2.31 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a hexagonal planar geometry to six equivalent Rh atoms. In the second Tl site, Tl is bonded to six equivalent Rh and two equivalent S atoms to form TlRh6S2 hexagonal bipyramids that share corners with six equivalent TlRh6S2 hexagonal bipyramids and corners with six equivalent RhTl4S2 octahedra. The corner-sharing octahedral tilt angles are 46°. Both Tl–S bond lengths are 3.15 Å. S is bonded in a 4-coordinate geometry to three equivalent Rh and one Tl atom.

36 MATERIALS SCIENCE↗
DOE OSTI2023

Striking stability of a mixed-valence thallium(III)-thallium(I) complex in some solvents

At the dissolution of solid anhydrous thallium(III) trifluoromethanesulfonate, Tl(CF 3 SO 3 ) 3 , or thallium(III) trifluoroacetate, Tl(CF 3 COO) 3 , in dimethylsulfoxide (dmso) or N,N,N’,N’-tetramethylurea (tmu), intensely red-colored complexes are formed. This red thallium complex is stable for years in dmso, while it is reduced fairly rapidly to thallium(I) in tmu with a half-life time of an hour. At the dissolution of Tl(CF 3 SO 3 ) 3 in N,N-dimethylpropyleneurea (dmpu) an immediate reduction to thallium(I) takes place. A stable colorless aqueous thallium(III) solution is obtained at the dissolution in acidic water. Stable dmso solutions and solid dmso solvates of thallium(III) perchlorate, nitrate and trifluormethanesulfonate can be prepared by adding dmso to concentrated acidic aqueous thallium(III) solutions. These experimental observations conclude that the pure solids Tl(CF 3 SO 3 ) 3 and Tl(CF 3 COO) 3 play an essential role in the formation of the red-colored thallium complexes. 205 Tl NMR data show that the red thallium complex contains equal amounts of thallium(III) and thallium(I). The structure of the red thallium complex in dmso, as determined by EXAFS, has Tl–O bond distances of 2.216(3) and 2.80(2) Å, which are in very close agreement with the bond distances obtained in the pure dmso solvates of the thallium(III) and thallium(I) ions, respectively, and a Tl···Tl distance of 3.49(1) Å bridged by oxygen atoms. From the EXAFS data it is impossible to distinguish if dmso molecules and/or trifluoromethanesulfonate ions act as bridges. DFT calculations could eliminate some structures due to the irrelevant structural parameters or the energetics of the proposed reactions.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on Tl3AgTe2 by Materials Project

AgTl3Te2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ag1+ is bonded in a 7-coordinate geometry to four Tl1+ and four Te2- atoms. There are a spread of Ag–Tl bond distances ranging from 3.32–3.68 Å. There are a spread of Ag–Te bond distances ranging from 2.86–3.09 Å. There are three inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 3-coordinate geometry to two equivalent Tl1+ and four Te2- atoms. There are one shorter (3.70 Å) and one longer (3.79 Å) Tl–Tl bond lengths. There are a spread of Tl–Te bond distances ranging from 3.32–3.81 Å. In the second Tl1+ site, Tl1+ is bonded in a 4-coordinate geometry to two equivalent Ag1+, three Tl1+, and five Te2- atoms. The Tl–Tl bond length is 3.76 Å. There are a spread of Tl–Te bond distances ranging from 3.35–3.75 Å. In the third Tl1+ site, Tl1+ is bonded in a 2-coordinate geometry to two equivalent Ag1+, one Tl1+, and five Te2- atoms. There are a spread of Tl–Te bond distances ranging from 3.29–3.83 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 9-coordinate geometry to one Ag1+ and seven Tl1+ atoms. In the second Te2- site, Te2- is bonded in a 10-coordinate geometry to three equivalent Ag1+ and seven Tl1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaTlGeSe4 by Materials Project

LaTlGeSe4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.11–3.39 Å. In the second La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.10–3.37 Å. In the third La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.11–3.39 Å. In the fourth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.11–3.37 Å. In the fifth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.10–3.38 Å. In the sixth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.12–3.38 Å. In the seventh La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.12–3.39 Å. In the eighth La3+ site, La3+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of La–Se bond distances ranging from 3.12–3.35 Å. There are eight inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to seven Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.31–3.92 Å. In the second Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.31–3.54 Å. In the third Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to seven Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.29–3.92 Å. In the fourth Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.31–3.55 Å. In the fifth Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.30–3.55 Å. In the sixth Tl1+ site, Tl1+ is bonded in a 7-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.31–3.55 Å. In the seventh Tl1+ site, Tl1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.31–3.53 Å. In the eighth Tl1+ site, Tl1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.30–3.53 Å. There are eight inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.41 Å. In the second Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.41 Å. In the third Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.42 Å. In the fourth Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.42 Å. In the fifth Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.41 Å. In the sixth Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.42 Å. In the seventh Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.38–2.42 Å. In the eighth Ge4+ site, Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.37–2.42 Å. There are thirty-two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, three Tl1+, and one Ge4+ atom. In the second Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the fifth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the sixth Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the seventh Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the eighth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the ninth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the tenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the eleventh Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the twelfth Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the thirteenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the fourteenth Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the fifteenth Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the sixteenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the seventeenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the eighteenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the nineteenth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the twentieth Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the twenty-first Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the twenty-second Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the twenty-third Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, two Tl1+, and one Ge4+ atom. In the twenty-fourth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the twenty-fifth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the twenty-sixth Se2- site, Se2- is bonded in a 1-coordinate geometry to one La3+, three Tl1+, and one Ge4+ atom. In the twenty-seventh Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the twenty-eighth Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom. In the twenty-ninth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the thirtieth Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the thirty-first Se2- site, Se2- is bonded in a 5-coordinate geometry to two La3+, two Tl1+, and one Ge4+ atom. In the thirty-second Se2- site, Se2- is bonded in a 4-coordinate geometry to three La3+ and one Ge4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbTlO3 by Materials Project

TlNbO3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.99–2.06 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.96–2.09 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.97–2.08 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.08 Å. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are a spread of Nb–O bond distances ranging from 1.99–2.07 Å. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.06 Å. In the seventh Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There are two shorter (2.01 Å) and four longer (2.03 Å) Nb–O bond lengths. In the eighth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–40°. There are a spread of Nb–O bond distances ranging from 1.98–2.07 Å. There are eight inequivalent Tl1+ sites. In the first Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.75–2.86 Å. In the second Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.85 Å. In the third Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.75–2.85 Å. In the fourth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.74–2.90 Å. In the fifth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.86 Å. In the sixth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.85 Å. In the seventh Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.74–2.87 Å. In the eighth Tl1+ site, Tl1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.73–2.87 Å. There are twenty-four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the tenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the sixteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the eighteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twentieth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twenty-second O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl1+ atoms. In the twenty-third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaTl3(SO3)2 by Materials Project

NaTl3(SO3)2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Na1+ is bonded in an octahedral geometry to six equivalent O2- atoms. All Na–O bond lengths are 2.51 Å. There are two inequivalent Tl+2.33+ sites. In the first Tl+2.33+ site, Tl+2.33+ is bonded in a distorted q6 geometry to nine equivalent O2- atoms. There are six shorter (3.02 Å) and three longer (3.11 Å) Tl–O bond lengths. In the second Tl+2.33+ site, Tl+2.33+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. All Tl–O bond lengths are 2.97 Å. S2+ is bonded in a trigonal non-coplanar geometry to three equivalent O2- atoms. All S–O bond lengths are 1.55 Å. O2- is bonded in a 2-coordinate geometry to one Na1+, four Tl+2.33+, and one S2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsTlCl3 by Materials Project

CsTlCl3 is (Cubic) Perovskite-like structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Cs is bonded to twelve equivalent Cl atoms to form CsCl12 cuboctahedra that share corners with twelve equivalent CsCl12 cuboctahedra, faces with six equivalent CsCl12 cuboctahedra, and faces with eight TlCl6 octahedra. All Cs–Cl bond lengths are 4.02 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded to six equivalent Cl atoms to form TlCl6 octahedra that share corners with six equivalent TlCl6 octahedra and faces with eight equivalent CsCl12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Tl–Cl bond lengths are 3.03 Å. In the second Tl site, Tl is bonded to six equivalent Cl atoms to form TlCl6 octahedra that share corners with six equivalent TlCl6 octahedra and faces with eight equivalent CsCl12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Tl–Cl bond lengths are 2.64 Å. Cl is bonded to four equivalent Cs and two Tl atoms to form a mixture of distorted corner, edge, and face-sharing ClCs4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KTlCl3 by Materials Project

KTlCl3 is High-temperature superconductor-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of eight potassium molecules and one TlCl3 framework. In the TlCl3 framework, there are two inequivalent Tl sites. In the first Tl site, Tl is bonded to six equivalent Cl atoms to form corner-sharing TlCl6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Tl–Cl bond lengths are 2.98 Å. In the second Tl site, Tl is bonded to six equivalent Cl atoms to form corner-sharing TlCl6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Tl–Cl bond lengths are 2.63 Å. Cl is bonded in a linear geometry to two Tl atoms.

36 MATERIALS SCIENCE↗